Kohler k-10950, k-10951 User Manual

Maintenance Guide

Electronic Faucet

K-10950, K-10951

M product numbers are for Mexico (i.e. K-12345M)
Los números de productos seguidos de
M corresponden a México (e.j.
K-12345M)
Français, page “Français-1”
Español, pagina “Español-1”

1025498-5-H

Thank You For Choosing Kohler Company

Thank you for choosing Kohler Company. Your Kohler Company
product reflects the true passion for design, craftsmanship, artistry, and
innovation Kohler Company stands for. We are confident its
dependability and beauty will surpass your highest expectations,
satisfying you for years to come.

All information in this guide is based upon the latest product
information available at the time of publication. At Kohler Company,
we strive to fulfill our mission of improving the level of gracious living
for each person who is touched by our products and services. We
reserve the right to make changes in product characteristics, packaging,
or availability at any time without notice.

Please take a few minutes to review this guide. Pay special attention to
the care and cleaning instructions.

Your Kohler Lavatory Faucet

Your new electronic lavatory faucet blends elegant styling and beauty
with exceptional performance and reliability. Each faucet is precision
engineered and constructed of premium quality materials to provide
trouble-free operation even under the hardest water conditions.

Your electronic faucet includes a vandal resistant aerator and an
integral vandal resistant mixing handle or plug button. The technology
employed for the activation mechanism allows flawless activation of
your electronic faucet. The faucet is rated at6VDC1Wandis
powered bya6VDCbattery or an optional AC power supply.

The electronic faucet also includes a vandalism resistant mode to
protect the unit from abuse or items left in front of the sensor. If an
item is placed in range of the sensor and remains there in excess of 120
seconds, the faucet will not function. The faucet will resume
functioning when the item has been removed for a minimum of 3
seconds.

Care and Cleaning

For best results, keep the following in mind when caring for your
KOHLER product:

•

Use a mild detergent such as liquid dishwashing soap and warm
water for cleaning. Do not use abrasive cleaners that may scratch
or dull the surface.

•

Carefully read the cleaner product label to ensure the cleaner is
safe for use on the material.

1025498-5-H 2 Kohler Co.

Care and Cleaning (cont.)

•

Always test your cleaning solution on an inconspicuous area
before applying to the entire surface.

•

Do not allow cleaners to sit or soak on the surface.

•

Wipe surfaces clean and rinse completely with water immediately
after cleaner application. Rinse and dry any overspray that lands
on nearby surfaces.

•

Use a soft, dampened sponge or cloth. Never use an abrasive
material such as a brush or scouring pad to clean surfaces.

For detailed cleaning information and products to consider, visit
www.kohler.com/clean. To order Care & Cleaning information, call
1-800-456-4537.

Kohler Co. 3 1025498-5-H

Cleaning
Strap

Handle

Screw

Limit
Stop

Vandal-Resistant
Plug Button

Tab Edge

Limit
Stop

Handle

Right Tab
Stop

Housing Setscrew

Adjust the Water Temperature

CAUTION: Risk of personal injury. Scalding may result if
the limit stop is not reinstalled properly.

NOTE: The water temperature does not need to be adjusted if the
water temperature is below 105°F (41°C).

NOTE: Use a thermometer rated for 120°F (49°C) or greater.

NOTE: When using a tempered water supply, install the

vandal-resistant plug button.

For Handle Installations

Turn on the water and adjust to the full hot position by turning
the handle toward the back of the faucet until it stops.

Determine the temperature using a thermometer. If the
temperature exceeds 105°F (41°C), complete the following steps.

Turn the handle until vertical.
Attach the cleaning strap over the sensor.
Remove the handle screw using the supplied 2.5 mm hex wrench.
Remove the handle and the limit stop.
Remove the limit stop from the handle splines.

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Adjust the Water Temperature (cont.)

Rotate and reposition the limit stop on the handle splines.
Rotating the limit stop clockwise toward the back of the faucet
will decrease the maximum temperature limit. Each spline
represents approximately 10°F (5°C) change in temperature.

Reinstall the handle vertically with the limit stop in place. Do not
secure the handle with the screw at this time.

Turn the handle to full hot and check the water temperature.
Repeat the above procedures until the desired temperature is

reached.
Secure the handle assembly with the screw.
Remove the cleaning strap and turn on the water.

For Vandal-Resistant Installations

NOTE: If you install the vandal-resistant plug button, save the limit
stop and handle to adjust the water temperature at a later date.

Using the handle, adjust the water to the desired temperature.
Remove the handle screw using the supplied 2.5 mm hex wrench.
Position the vandal-resistant plug button and firmly press into

place.

Kohler Co. 5 1025498-5-H

Handle

Screw

Limit
Stop

Handle

Housing
Setscrew

Disassemble the Faucet

Perform this step when prompted by text in the following sections.

Turn off the water supply to the faucet.
If applicable, disconnect the AC power supply.
Remove the housing setscrew from the back of the faucet housing

using the supplied 2.5 mm hex wrench.
If applicable, remove the handle. Use the provided 2.5 mm hex

wrench to remove the handle screw.

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Sensor

Battery

Connector

Connector

Position 2
Connector
Position 1

Valve

Battery Clip

Service the Battery

CAUTION: Risk of product damage. Separate the connectors
by pulling gently while holding onto each connector. Do not

pull apart by the wires.
Perform the steps in the ″Disassemble the Faucet″ section.
Pull up on the spout to separate it from the valve.
Disconnect the battery connectors by pulling gently on both

connectors.
Reach inside the faucet body and gently pull the end of the

battery clip up until it comes free from the two tabs.
Pull the battery and battery clip out of the faucet body.
Remove the battery from the battery clip.
Install a new battery into the battery clip.
If the sensor clip comes out with the battery clip, reinstall it

according to the steps in the ″Replace the Sensor ″ section.
Continue to the ″Reinstall the Battery Clip - DC Models Only″

section.

Kohler Co. 7 1025498-5-H

Service the Battery (cont.)

Reinstall the battery clip inside the faucet body.

NOTE: ″Connector Position 1″ is the preferred installation location
for the connectors. ″Connector Position 2″ may also be used as an
alternate installation location. Refer to the above illustration.

Position the connector tight to the battery clip in connector
position 1 (DC models have one connector).

Slide the faucet spout over the valve assembly. It is important
that the front of the spout line up with the pin at the bottom
front of the valve assembly.

IMPORTANT! Verify that all the wires are inside the faucet body
and are not pinched.

Convert to Tempered Water

To provide tempered water only, use a wrench to remove the
hose for the hot water after first turning off the water supply to
the faucet.

Replace the hose with the plug supplied and securely wrench
tighten.

If applicable, install the vandal-resistant plug button. Refer to the
″Disassemble the Faucet″ section to remove the handle.

Turn on the water supply to the faucet and check for leaks.

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2

1

Sensor Clip

Sensor

Connector

Position 2
Connector
Position 1

Battery Clip
Installation

Battery Clip
Installed

Replace the Sensor

CAUTION: Risk of product damage. Do not disconnect the
connectors by pulling on the wires.

Carefully disconnect the wires by pulling gently on the
connectors.

Pull the loop outward to disengage the clip from the groove.
Rotate the clip counterclockwise.
Remove the old sensor.
Attach the new sensor wires to the connectors.
Install the sensor in the faucet, wire side first.
Align the sensor eyes with the holes in the spout.
Place the straight end of the clip into the hole in the retaining

wall of the spout.
Pull the clip out until the bend in the clip is resting at the

entrance to the groove. Avoid pinching the wires between the
sensor and clip.

Push the clip in until it is firmly seated in the groove.

Kohler Co. 9 1025498-5-H

Replace the Sensor (cont.)

If applicable, see the ″Reinstall the Battery Clip - DC Models
Only″ section to reinstall the battery and battery clip.

Proceed to the ″Reassemble the Faucet″ section.

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Flex
Hose

Housing

Screen

Adapter

Service the Filter

IMPORTANT! If the flow from the faucet decreases from its original
volume, it is a possible indication that the in-line filters are partially
blocked. Follow these procedures to clean the filters.

Turn off the water supplies.
Disconnect the flex hoses from the filter assemblies.
Remove the filter assemblies from the supply stops.
Using two wrenches, separate the housing from the adapter.
Remove the screen and clean all debris from the screen and the

housing.
Return the screen to the housing, making sure the convex side of

the screen faces the supply stop.
Thread the housing and adapter together.
Reattach the filter assemblies to the supply stops and flex hoses.

Kohler Co. 11 1025498-5-H

Plug

Diaphragm
Assembly

O-Ring

Faceplate

Screw

Service the Diaphragm

NOTE: Disassemble the faucet following the steps in the

″Disassemble the Faucet″ section.

Disconnect the wire connectors and set the faucet body aside.
Using a Phillips screwdriver, remove the four screws.
Check the O-ring for wear. Replace if worn.
Remove the diaphragm from the back of the faceplate by gently

prying it away with your fingers.
Rinse off any debris.
Position the replacement diaphragm and snap it into place.
Reinstall the faceplate and secure with the four screws.
Proceed to the ″Reassemble the Faucet″ section.

Service the Plug

NOTE: Disassemble the faucet following the steps in the

″Disassemble the Faucet″ section.

Disconnect the wire connectors and set the faucet body aside.
Use a hex wrench to remove the plug.
Install the replacement plug assembly and securely wrench

tighten.
Proceed to the ″Reassemble the Faucet″ section.

1025498-5-H 12 Kohler Co.

Screw

Solenoid Unit

Battery
Plug-In

O-Ring

O-Ring

O-Ring

Service the Solenoid

NOTE: Disassemble the faucet following the steps in the

″Disassemble the Faucet″ section.

Disconnect the wire connector and set the faucet body aside.
Remove the two mounting screws using a Phillips screwdriver.
Remove the solenoid unit.
Position the new solenoid unit. Make sure the O-rings are

properly positioned on the bottom of the solenoid.
Tighten the two mounting screws using a Phillips screwdriver.
Proceed to the ″Reassemble the Faucet″ section.

Kohler Co. 13 1025498-5-H

Vandal Resistant
Plug Button

Remove the Vandal-Resistant Plug

NOTE: Disassemble the faucet following the steps in the

″Disassemble the Faucet″ section.

From inside the faucet body, use a screwdriver to pop out the
vandal-resistant plug button.

If you are adjusting the temperature, go to the ″Optional
Temperature Limiting Adjustment″ section and follow the
instructions.

If you are installing the handle assembly, refer to the illustration
in the ″Optional Temperature Limiting Adjustment″ section.
Otherwise, reinstall the plug button.

Position the plug button and firmly press into place.

1025498-5-H 14 Kohler Co.

Sensor

Battery

Connector

Connector

Position 2
Connector
Position 1

Valve

Battery Clip

Reinstall the Battery Clip - DC Models Only

NOTE: When installing the battery and battery clip, make sure the
wire and connector are accessible to allow for future connection.

With the battery clip angled slightly, insert it into the faucet body
as shown above.

Engage one side of the battery clip into the left tab on the inner
wall of the faucet body.

Press down firmly to snap the clip into the other tab. Verify that
the clip is resting against the wall of the faucet body.

Proceed to the ″Reassemble the Faucet″ section.

Kohler Co. 15 1025498-5-H

Mixer Valve

Service the Mixer Valve

NOTE: Disassemble the faucet following the steps in the

″Disassemble the Faucet″ section.

Disconnect the connector(s).
Set the faucet body aside.
Remove the valve using an adjustable wrench.
Install the new valve. Tighten securely using an adjustable

wrench.
Proceed to the ″Reassemble the Faucet″ section.

1025498-5-H 16 Kohler Co.

Position 1

To Battery/Sensor

To Sensor

AC
Models
Only

To Power Supply

Important:

Connect with the
arrows pointing
toward each other.

To Valve Assembly

Position 2
(alternate)

(preferred)

Wire for
AC power

Reassemble the Faucet

For AC models only: Run the AC power cord through the front
hole in the faucet valve to the underside of the deck.

IMPORTANT! Connect the connectors with the arrows pointing
directly toward each other.

Reconnect the sensor connector to the valve connector.

NOTE: ″Position 1″ is the preferred installation location for the
connectors. ″Position 2″ may also be used as an alternate installation
location. Refer to the above illustration.

Position the valve/sensor connection tight to the battery clip in
one of the connector positions illustrated above.

IMPORTANT! Verify that all the wires are inside the faucet body so
they are not pinched while installing the valve assembly.

Line up the front of the spout with the pin at the bottom front of
the valve assembly.

Slide the faucet spout over the valve assembly.

One-Year Limited Warranty — USA and Canada

KOHLER plumbing products are warranted to be free of defects in
material and workmanship for one year from date of installation.

Kohler Co. will, at its election, repair, replace or make appropriate

Kohler Co. 17 1025498-5-H

One-Year Limited Warranty — USA and Canada (cont.)

adjustment where Kohler Co. inspection discloses any such defects
occurring in normal usage within one (1) year after installation. Kohler
Co. is not responsible for removal or installation costs. Use of in-tank
toilet cleaners will void the warranty.

To obtain warranty service contact Kohler Co. either through your
Dealer, Plumbing Contractor, Home Center or E-tailer, or by writing
Kohler Co., Attn.: Customer Service Department, 444 Highland Drive,
Kohler, WI 53044, USA, or by calling 1-800-4-KOHLER from within the
USA, 1-800-964-5590 from within Canada and 001-877-680-1310 from
within Mexico.

Implied warranties including that of merchantability and fitness for
a particular purpose are expressly limited in duration to the duration
of this warranty. Kohler Co. and/or seller disclaims any liability for
special, incidental or consequential damages.

Some states/provinces do not allow limitations on how long an
implied warranty lasts, or the exclusion or limitation of special,
incidental or consequential damages so these limitations and exclusions
may not apply to you. This warranty gives you specific legal rights.
You may also have other rights which vary from state/province to
state/province.

This is Kohler Co.’s exclusive written warranty.

Troubleshooting Guide

Symptoms Probable

1. No water

flow (DC).

1025498-5-H 18 Kohler Co.

Causes
A. There is a

loose
connection.

B. The wires

are
pinched or
damaged.

Recommended Action

A. Remove the spout and check

the connection from the battery
to the solenoid and from the
solenoid to the sensor. Make
sure that the connector arrows
are aligned and that the
connection is secure.

B. Remove the spout and verify

that the wires are tucked inside
the spout before reassembling.
If the wires are cut or
damaged, order a new solenoid
or sensor assembly.

Troubleshooting Guide (cont.)

Symptoms Probable

Causes
C. There is

water
leakage on
electrical
components
or
connectors.

D. The

battery life
has
expired.

2. No water

flow (AC).

A. The AC

unit is not
plugged
in.

B. The

ground
fault
breaker is
tripped.

C. There is a

loose
connection.

D. The wires

are
pinched or
damaged.

Recommended Action

C. Remove the spout and check

for corrosion on the
connections between the battery
to solenoid and the solenoid to
sensor. If possible, clean the
terminals. If unable to repair
the connection, order a new
sensor assembly or solenoid
assembly, as required. Inspect
the O-ring on the valve for
cuts, debris, etc. If the O-ring is
damaged, order a new O-ring.
The origin of the leak must be
investigated and repaired.

D. Remove the spout and replace

the battery. The spout requires
a standard 6 Volt lithium
battery. This item is not
available from Kohler but can
be purchased at many stores
locally.

A. Plug the AC wall brick firmly

into a working outlet.

B. Check that the breaker for the

circuit used by the faucet is on.

C. Remove the spout and check

the connection from the AC
unit to the solenoid and from
the solenoid to sensor. Make
sure that the connector arrows
are aligned and that the
connection is secure.

D. Remove the spout and verify

that the wires are tucked inside
the spout before reassembling.
If wires are cut or damaged,
order new solenoid or sensor
assembly.

Kohler Co. 19 1025498-5-H

Troubleshooting Guide (cont.)

Symptoms Probable

3. No water

flow (Either
AC or DC).

Causes
E. There is

water
leakage on
electrical
components
or
connectors.

F. The AC

unit does
not work.

A. Sensor

eyes are
dirty.

B. Water not

turned on.

C. Incorrect

installation.

D. The

filter(s) are
plugged.

E. The

aerator is
plugged.

Recommended Action

E. Remove the spout and check

for corrosion on connections
between AC unit to solenoid
and the solenoid to sensor. If
possible clean terminals. If you
are unable to repair the
connection, order a new battery
assembly or sensor assembly, as
required. The origin of the leak
must be investigated and
repaired.

F. Measure the voltage of the unit.

The voltage should measure 6
Volts. If there is no power or
low power is detected, order a
new unit.

A. Wipe the sensor eyes with a

damp soft cloth. Wipe dry with
a dry soft cloth.

B. Verify that the water supply is

turned on and that pressure is
at least 20 psi (137 kPa).

C. Verify that the faucet is

mounted flat to the deck
surface and that the sensor eyes
are aligned to the user area.
Ensure that the sensor eyes are
above the rim of the lavatory.
Refer to the installation
instructions.

D. Turn off the water supply and

disconnect the fittings from the
flex hoses. Remove the filter
cartridges from both supplies.
Clean all debris from the filter
screens and reinstall the
screens, and reinstall the filter
cartridges.

E. Remove the aerator and clean.

For calcium/mineral deposits,
soak the plastic insert in a 50:50
mix of water and vinegar. Soak
only the plastic insert.

1025498-5-H 20 Kohler Co.

Troubleshooting Guide (cont.)

Symptoms Probable

4. Low flow

(either AC or
DC).

5. Constant

water flow
(DC).

6. Constant

water flow
(AC).

Causes
F. Sensor

eyes are
scratched.

G. The bleed

hole in the
diaphragm
is plugged
or the
plunger is
stuck.

H. A flex hose

is kinked.

A. Supply

pressure is
low.

B. Filters are

plugged.

C. Aerator is

plugged.

A. Battery life

expired.

A. The power

source is
unstable,
off, or the
circuit is
blown.

Recommended Action

F. Replace the sensor assembly.

G. Turn off the water supply.

Remove valve cover and
diaphragm assembly. Clean any
debris from the area and
reinstall the components.

H. Check the flex hoses to make

certain they are not kinked. If
a flex hose is kinked,
disconnect it from the filter
cartridge, straighten, and
reconnect.

A. Check any filtration systems for

blockage. Check incoming
water pressure. Pressure should
be at least 20 psi (137 kPa).

B. Turn off water supply and

disconnect fittings from supply
lines. Remove filter cartridges
from both supply lines. Clean
debris from screens and
reinstall the cartridges.

C. Remove the aerator and clean

it. For calcium/mineral
deposits, soak the aerator
plastic insert in a 50:50 mixture
of vinegar and water. Soak only
the insert and no other
components.

A. Remove spout and replace

battery. Use a standard 6 Volt
lithium battery. This item is not
available from Kohler but can
be purchased at many stores
locally.

A. Once the power is stable,

unplug the unit and plug back
into wall.

Kohler Co. 21 1025498-5-H

Troubleshooting Guide (cont.)

Symptoms Probable

7. Constant

water flow
(Either AC or
DC).

8. Sporadic

water flow.

9. Water is

dripping on
deck

Causes
A. The

diaphragm
seal dirty
or
damaged.

B. The

solenoid is
plugged.

C. The

solenoid is
does not
work.

D. The

filter(s) are
plugged.

A. The faucet

is installed
at wrong
angle to
deck or
misaligned
with user
area.

B. The wires

are
pinched or
damaged.

A. The valve

O-ring is
missing,
cut, or
damaged.

Recommended Action

A. Turn off the water supply and

purge the faucet. Remove the
valve front plate and check the
diaphragm and surrounding
area for debris. Clean out any
debris. If the diaphragm is
damaged, order a replacement.

B. Remove the spout and

solenoid. Check the solenoid
holes for debris.

C. Remove the spout and

solenoid. Replace the solenoid.

D. Turn off the water supply and

disconnect the fittings from the
flex hoses. Remove the filter
cartridges from both supplies.
Clean all debris from the
screens and replace them in the
unit.

A. Verify that the faucet is

mounted flat to the deck
surface and that the sensor eyes
are aligned to the user area.
Ensure that the faucet is
installed in a position that is
above the rim of the lavatory.

B. Remove the spout and verify

that the wires are tucked inside
the spout before reassembling.

A. Order a new O-ring for the

valve and install.

1025498-5-H 22 Kohler Co.

Troubleshooting Guide (cont.)

Symptoms Probable

Causes

10. Sensor

flashes once
approximately
every 8

A. The

battery
power is

low.
seconds. The
product
continues to
operate.

11. Sensor

flashes once
approximately
every 2
seconds. The
product does
not operate.

A. The

battery

power is

insufficient

to allow

the

product to

operate.

Recommended Action

A. Replace the battery. The

product may continue to
operate for several days with
low battery power. The product
requires a 2CR5 6 V lithium
battery. This item is not
available from Kohler Co. but
can be purchased at a local
retail store.

A. Replace the battery. The

product requires a 2CR5 6 V
lithium battery. This item is not
available from Kohler Co. but
can be purchased at a local
retail store.

Kohler Co. 23 1025498-5-H